Combined dental tray and control unit therefor



FIG. 1 is a front perspective of a combined dental tray and control unitshowing my new design;

FIG. 2 is a rear perspective thereof;

FIG. 3 is a bottom view taken in an alternate position of FIG. 2; and

FIG. 4 is a rear view thereof. The broken lines are shown forillustrative purposes only.

The ornamental design for a combined dental tray and control unittherefor, as shown and described.